Add new page. On the other hand, the Short-Tailed River Stingray's tail is a lot shorter, and often described as a "club". The Short-Tailed River Stingray distinguishes itself from the Thai Giant Freshwater Stingray (also known as the "whipray"), by differences in the tail. [11], Off southern Africa, the short-tail stingray is rare in shallow water and is most often found over offshore banks at a depth of 180 to 480 m (590 to 1,570 ft). Seem it can grows up to 550 pound - 250 kilo. Geographic distribution of the short-tailed river stingray (Potamotrygon brachyura): Assessing habitat loss and fishing as threats to the world's largest obligate freshwater elasmobranch . The short-tailed river stingray (Potamotrygon brachyura), endemic to the Rı´o de la Plata basin, is one of the most conspicuous obligate freshwater elasmobranchs. Greatest Weight: More than 450 pounds . Short Tailed River Stingray Potamotrygon brachyura (Günther 1880) collect. The leading margins of the disc are very gently convex, and converge on a blunt, broadly triangular snout. Fish Identification: Find Species. Explore Wikis; Community Central; Start a Wiki; Search This wiki This wiki All wikis | Sign In Don't have an account? [2][9] Albino individuals have been reported. River Monsters Piraiba. One or two males may be dragged by the female for hours before she accedes; the successful male flips upside down beneath her, inserting one of his claspers into her vent and rhythmically waving his tail from side to side. The modestly sized mouth has an evenly arched lower jaw, prominent grooves at the corners, and five to seven papillae (nipple-like structures) on the floor. The lateral line system on its underside allows it to detect the minute water jets produced by buried bivalves and spoon worms, which are then extracted by suction; the excess water is expelled through the spiracles. Greatest Diameter: Up to 4.9 feet . Games Movies TV Video. The largest recorded short-tailed river stingray catch involved one weighing 661 pounds (300 kilograms). Class: Elasmobranchii Order: Myliobatiformes Family: Potamotrygonidae River stingrays Genus: Potamotrygon (See list of species below) 185 Pages. Potamotrygonids are almost circular — except for the genus Paratrygon and an undescribed genus — and range from Potamotrygon schuhmacheri, which reaches 25cm/10” in diameter, to the Short-tailed river stingray, P. brachyura (above), from Paraguay, Argentina and Uruguay which can grow to 1.5m/4.9’ in disc width. Short-Tailed River Stingray.. "Biological Profiles: Short-tail stingray" at Florida Museum of Natural History, https://en.wikipedia.org/w/index.php?title=Short-tail_stingray&oldid=1000060944, Pages containing links to subscription-only content, Articles with unsourced statements from July 2019, Taxonbars with automatically added original combinations, Creative Commons Attribution-ShareAlike License, This page was last edited on 13 January 2021, at 10:33. Courtship and mating takes place in midwater, and the rising current flowing continuously through the narrow archways is thought to aid the rays in maintaining their position. These individuals from the shark family don't regularly assault, yet they will in the event that they need to. Last, P.R., G.J. A tracking study conducted on two New Zealand rays suggests that they shifted to deeper waters during the winter, but did not undertake long-distance migrations. Manjaji-Matsumoto, 2016. Potamotrygon brachyura (Günther 1880) Species recognized by EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1. This stingray is found along sandy bottoms, bays, harbors, and near rocky reefs. | ITIS | CoL | WoRMS | Cloffa. River Monsters Wels Catfish . As pretty and shimmery as they look, these things have been known to sever limbs! [22], Like other stingrays, the short-tail stingray was aplacental viviparous; once the developing embryos exhaust their yolk supply, they are provisioned with histotroph ("uterine milk", enriched with proteins, lipids, and mucus) produced by the mother and delivered through specialized extensions of the uterine epithelium called "trophonemata". Most individuals caught are released alive; often, fishers cut off their tails beforehand for safety, though this practice does not seem to have a significant impact on the rays' long-term survival. Downloads. KimQuind6369. Adults have a midline row of large, backward-pointing, spear-like thorns or flattened tubercles in front of the sting, as well as much smaller, conical thorns behind the sting covering the tail to the tip. overview; data; articles; maps; names; Scientific Names. Add new page . Geographic distribution of the short-tailed river stingray (Potamotrygon brachyura): Assessing habitat loss and fishing as threats to the world's largest obligate freshwater elasmobranch Formerly classified as data deficient in the 2000 IUCN red list of threatened species (Ref. yield (Lopt): s.e. Copulation lasted 3–5 minutes. It is often caught incidentally by commercial and recreational fisheries throughout its range, usually surviving to be released. River Monsters. Register Start a Wiki. [12] Off South Africa, this ray has been observed patrolling the egg beds of the chokka squid (Loligo vulgaris reynaudii) during mass spawnings, capturing squid that descend to the bottom to spawn. [16] It feeds primarily on benthic bony fishes and invertebrates, such as molluscs and crustaceans. [8][13] Each receptive female may be followed by several males, which attempt to bite and grip her disc. (2016) resurrected Bathytoshia for it and the broad stingray, as well as the roughtail stingray. - cm Estimated from Linf. [citation needed] Sport fishers occasionally keep captured rays for meat or angling competitions; a few are also kept for display in public aquariums,[1] and they reproduce in captivity. [1][8] However, it also makes regular forays upward into the middle of the water column. [1] Mature females are about a third larger than mature males. It is mostly bottom-dwelling in nature and can be found across a range of habitats from estuaries to reefs, but also frequently will swim into open water. Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays) … Mark Towers with a 120 kg 260lb short tailed river ray caught in Bella Vista, Argentina. The diet of the short-tail stingray consists of invertebrates and bony fishes, including burrowing and midwater species. Geographic distribution of the short-tailed river stingray (Potamotrygon brachyura): assessing habitat loss and fishing as threats to the world’s largest obligate freshwater elasmobranchLuis O. Lucifora A H, Santiago A. Barbini B, Sabina Llamazares Vegh C, Pablo A. Scarabotti D, Facundo Vargas E, Agustín Solari A F, Ezequiel Mabragaña G and Juan M. Díaz de Astarloa G Although many stingrays remain inactive for considerable periods, they often swim to new territories to hunt. The pelvic fins are somewhat large and rounded at the tips. nyopesz Jun 5, 2020 @ 6:10am please make hypancistrus zebra (a type of pleco) nyopesz Jun 5, 2020 … The Short-Tailed River Stingray, or Chucho de Rio (which means 'River Dog") is a rare fish found in the Parana River in Argentina, with a lethal barb full of tissue-destroying venom. Access your email, find thousands of high-quality videos, and get the latest news and information. In New Zealand waters, it occurs off North Island and the Chatham Islands, and rarely off South Island and the Kermadec Islands. 21:03. < > 5 Comments Bobotmeister Jun 18, 2020 @ 12:55am Underrated imo. [7] It is closely related to the similar-looking but smaller pitted stingray (Dasyatis matsubarai) of the northwestern Pacific. River Monsters Alligator Gar. Explore Wikis; Community Central; Start a Wiki; Search This wiki This wiki All wikis | Sign In Don't have an account? [1] In June 2018 the New Zealand Department of Conservation classified the short-tail stingray as "Not Threatened" with the qualifier "Secure Overseas" under the New Zealand Threat Classification System. Austin Whittall notes that the cuero is very reminiscent of a freshwater ray, which exist in the river systems of northern South America, as far south as the Paraná Basin: the largest South American species, short-tailed river stingray (Potamotrygon brachyura), is found in the Río de la Plata Basin in northern Argentina. [17] Fishes and invertebrates from open water, including salps and hyperiid amphipods, are also eaten in significant quantities. Records from northern Australia and Thailand likely represent misidentifications of pink whipray and pitted stingray, respectively. Explainers; Comments are subject to our community guidelines, which can be viewed here. [2] Smaller fishes have been observed using swimming rays for cover while hunting their own prey. River Monsters River of Blood Pictures. The original description of the short-tail stingray was made by Frederick Hutton, curator of the Otago Museum, from a female specimen 1.2 m (3.9 ft) across caught off Dunedin in New Zealand. River Monsters Wiki. Slavic_Samurai Jun 9, 2020 @ 5:13am Amazing work! The short-tailed stingray can measure as much as 2m across and weigh 250kg, however much larger specimens have been reported measuring 3m across. It is the first instalment in the Miitopia Trilogy, followed by Miitopia 2: Maleficent's Revenge (July 28, 2012) and Miitopia 3: Rise Of The Shadow Queen (July 5, 2016).The show follows the story of a superstitious hatred for witches, where people employ witch-hunters and witch-executioners. nyopesz Jun 5, 2020 @ 6:10am please make hypancistrus zebra (a type of pleco) nyopesz Jun 5, 2020 … [2][8][14] Newborns measure 32–36 cm (13–14 in) across. The widely spaced nostrils are long and narrow; between them was a short, skirt-shaped curtain of skin with a fringed posterior margin. [12][14] Females in captivity have been observed mating with up to three different males in succession. River Monsters Alligator Gar. < > 5 Comments Bobotmeister Jun 18, 2020 @ 12:55am Underrated imo. If your photograph was not given proper credit, please contact us and the correction will be made as soon as possible. Representative Steve Wozn... FLATHEAD AUSTRALIAN (Platycephalus fuscus), ANGLER FISH MONKFISH (Lophius piscatorius), PIRAIBA CATFISH (Brachyplatystoma filamentosum). It occurs off southern Africa, typically offshore at a depth of 180–480 m (590–1,570 ft), and off southern Australia and New Zealand, from the intertidal zone to a depth of 156 m (512 ft). Off southern Africa, it has been reported from Cape Town in South Africa to the mouth of the Zambezi River in Mozambique. Within most of this species' range off New Zealand, targeting it commercially is prohibited. Jeremy Catches Stingray After 2 Hour Battle! Add new page . Its plain-colored, diamond-shaped pectoral fin disc is characterized by a lack of dermal denticles even in adults, and white pores beside the head on either side. 361 Pages. In some areas, it moves with the rising tide into very shallow water. - cm L maturity (Lm): s.e. Large aggregations of rays form seasonally at certain locations, such as in the summer at the Poor Knight Islands off New Zealand.